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Preparation, characterizations and electrochromic properties of copolymers containing 5, 10, 15, 20-tetra(thienyl) porphyrin and thiophene derivatives
Synthetic Metals ( IF 4.0 ) Pub Date : 2019-12-01 , DOI: 10.1016/j.synthmet.2019.116202
Yafei Guo , Xinmin Hao , Yijie Tao , Chaoyang Zhang , Haifeng Cheng

Abstract Four meso-tetrakis (thienyl)porphyrin (Por) monomers, either free or complexed with Zn(II), have been copolymerized with thiophene or 3,4-ethyldioxythiophene (EDOT) for preparation of multielectrochromic polymers in boron fluoride ethyl ether (BFEE). Fourier Transform Infrared Spectrometer (FT-IR) and X-ray Photoelectron Spectroscopy (XPS) confirm the formation of these copolymers. Due to the deep coloration, distinctive electronic spectra and large conjugated characteristics of porphyrins, the prepared copolymers possess multielectrochromic properties with fast switching response and good stability, which can be tuned by the comonomers, and complexing of porphyrin with Zn(II). Although the Zn(II) derivatives can act as a donor molecule, the Zn(II) complexing is still difficult to electrochemically polymerize as polymer films in comparison with their porphyrin monomers such as 5, 10, 15, 20-tetra(3-thienyl) porphyrin, which may take a deep influence on the structure of the resultant copolymers, then the spectroelectrochemical properties. Finally, our work indicates that porphyrin macrocycle can be a good embedding unit for preparing electrochromic polymers.

中文翻译:

含有 5, 10, 15, 20-四(噻吩基)卟啉和噻吩衍生物的共聚物的制备、表征和电致变色性能

摘要 四种中四(噻吩基)卟啉(Por)单体,无论是游离的还是与 Zn(II) 复合,已与噻吩或 3,4-乙基二氧噻吩 (EDOT) 共聚,用于在氟化硼乙醚 (BFEE) 中制备多电致变色聚合物。 )。傅里叶变换红外光谱仪 (FT-IR) 和 X 射线光电子光谱仪 (XPS) 证实了这些共聚物的形成。由于卟啉的深着色、独特的电子光谱和大的共轭特性,所制备的共聚物具有多电致变色特性,具有快速切换响应和良好的稳定性,可通过共聚单体进行调节,以及卟啉与 Zn(II) 的络合。尽管 Zn(II) 衍生物可以作为供体分子,与 5、10、15、20-四(3-噻吩基)卟啉等卟啉单体相比,Zn(II) 络合物仍难以电化学聚合为聚合物薄膜,这可能对聚合物薄膜的结构产生深远的影响。得到的共聚物,然后是光谱电化学性质。最后,我们的工作表明卟啉大环可以是制备电致变色聚合物的良好嵌入单元。
更新日期:2019-12-01
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